Yup, that's a good modern Mexican style western hat.
a mexican told me that it could be both mexican and american
americans
Look at the "American" brim styles in the picture and the brim style on yours. Yours is bent up at the base of the crown, that is distinctly Mexican. Regardless it's a nice hat. I have a couple of modern Stetsons, an 1860s onward style Stetson copy of a flat prairie style, a modern Shady Brady summer hat (made from reeds/grass) and a palm plantation. All the rest of my hats are "period" reproductions ranging from 1750 up through 1950.
I also have reproduction "period" clothing, accoutrements and weapons covering those time periods. I do reenacting and living history, mostly living history now and have done extensive research over the last few decades as well as have contacts that have forgotten more than I'll ever know.